1 files changed, 0 insertions, 172 deletions
diff --git a/JavaScriptCore/wtf/text/StringBuilder.cpp b/JavaScriptCore/wtf/text/StringBuilder.cpp
deleted file mode 100644
index dfc9ff3..0000000
--- a/JavaScriptCore/wtf/text/StringBuilder.cpp
+++ /dev/null
@@ -1,172 +0,0 @@
-/*
- * Copyright (C) 2010 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
- */
-
-#include "config.h"
-#include "StringBuilder.h"
-
-#include "WTFString.h"
-
-namespace WTF {
-
-void StringBuilder::reifyString()
-{
-    // Check if the string already exists.
-    if (!m_string.isNull()) {
-        ASSERT(m_string.length() == m_length);
-        return;
-    }
-
-    // Check for empty.
-    if (!m_length) {
-        m_string = StringImpl::empty();
-        return;
-    }
-
-    // Must be valid in the buffer, take a substring (unless string fills the buffer).
-    ASSERT(m_buffer && m_length <= m_buffer->length());
-    m_string = (m_length == m_buffer->length())
-        ? m_buffer.get()
-        : StringImpl::create(m_buffer, 0, m_length);
-}
-
-void StringBuilder::resize(unsigned newSize)
-{
-    // Check newSize < m_length, hence m_length > 0.
-    ASSERT(newSize <= m_length);
-    if (newSize == m_length)
-        return;
-    ASSERT(m_length);
-
-    // If there is a buffer, we only need to duplicate it if it has more than one ref.
-    if (m_buffer) {
-        if (!m_buffer->hasOneRef())
-            allocateBuffer(m_buffer->characters(), m_buffer->length());
-        m_length = newSize;
-        m_string = String();
-        return;
-    }
-
-    // Since m_length && !m_buffer, the string must be valid in m_string, and m_string.length() > 0.
-    ASSERT(!m_string.isEmpty());
-    ASSERT(m_length == m_string.length());
-    ASSERT(newSize < m_string.length());
-    m_length = newSize;
-    m_string = StringImpl::create(m_string.impl(), 0, newSize);
-}
-
-void StringBuilder::reserveCapacity(unsigned newCapacity)
-{
-    if (m_buffer) {
-        // If there is already a buffer, then grow if necessary.
-        if (newCapacity > m_buffer->length())
-            allocateBuffer(m_buffer->characters(), newCapacity);
-    } else {
-        // Grow the string, if necessary.
-        if (newCapacity > m_length)
-            allocateBuffer(m_string.characters(), newCapacity);
-    }
-}
-
-// Allocate a new buffer, copying in currentCharacters (these may come from either m_string
-// or m_buffer,  neither will be reassigned until the copy has completed).
-void StringBuilder::allocateBuffer(const UChar* currentCharacters, unsigned requiredLength)
-{
-    // Copy the existing data into a new buffer, set result to point to the end of the existing data.
-    RefPtr<StringImpl> buffer = StringImpl::createUninitialized(requiredLength, m_bufferCharacters);
-    memcpy(m_bufferCharacters, currentCharacters, static_cast<size_t>(m_length) * sizeof(UChar)); // This can't overflow.
-
-    // Update the builder state.
-    m_buffer = buffer.release();
-    m_string = String();
-}
-
-// Make 'length' additional capacity be available in m_buffer, update m_string & m_length,
-// return a pointer to the newly allocated storage.
-UChar* StringBuilder::appendUninitialized(unsigned length)
-{
-    ASSERT(length);
-
-    // Calcuate the new size of the builder after appending.
-    unsigned requiredLength = length + m_length;
-    if (requiredLength < length)
-        CRASH();
-
-    if (m_buffer) {
-        // If the buffer is valid it must be at least as long as the current builder contents!
-        ASSERT(m_buffer->length() >= m_length);
-
-        // Check if the buffer already has sufficient capacity.
-        if (requiredLength <= m_buffer->length()) {
-            unsigned currentLength = m_length;
-            m_string = String();
-            m_length = requiredLength;
-            return m_bufferCharacters + currentLength;
-        }
-
-        // We need to realloc the buffer.
-        allocateBuffer(m_buffer->characters(), std::max(requiredLength, m_buffer->length() * 2));
-    } else {
-        ASSERT(m_string.length() == m_length);
-        allocateBuffer(m_string.characters(), std::max(requiredLength, requiredLength * 2));
-    }
-
-    UChar* result = m_bufferCharacters + m_length;
-    m_length = requiredLength;
-    return result;
-}
-
-void StringBuilder::append(const UChar* characters, unsigned length)
-{
-    if (!length)
-        return;
-    ASSERT(characters);
-
-    memcpy(appendUninitialized(length), characters, static_cast<size_t>(length) * 2);
-}
-
-void StringBuilder::append(const char* characters, unsigned length)
-{
-    if (!length)
-        return;
-    ASSERT(characters);
-
-    UChar* dest = appendUninitialized(length);
-    const char* end = characters + length;
-    while (characters < end)
-        *(dest++) = *(const unsigned char*)(characters++);
-}
-
-void StringBuilder::shrinkToFit()
-{
-    // If the buffer is at least 80% full, don't bother copying. Need to tune this heuristic!
-    if (m_buffer && m_buffer->length() > (m_length + (m_length >> 2))) {
-        UChar* result;
-        m_string = StringImpl::createUninitialized(m_length, result);
-        memcpy(result, m_buffer->characters(), static_cast<size_t>(m_length) * 2); // This can't overflow.
-        m_buffer = 0;
-    }
-}
-
-} // namespace WTF